const url = 'www.samanthaming.com/tidbit.jpg';

​

// 1. Split string by "."

const array = url.split('.'); // [ 'www', 'samanthaming', 'com/tidbit', 'jpg' ]

​

// 2. Create only the variable we want

const [ , domain, ,type] = array;

​

// 3. Consuming the variable we created

const name = `${domain}.${type}`;

// 'samanthaming.jpg'

// ❌ Ugh, useless variable assignment

const [ignore, keep] = ['ignore', 'keep'];

​

// ✅ Good (blank space)

const [, keep] = ['ignore', 'keep'];

​

// ✅ Good ("_" communicates useless variable)

const [_ignore, keep] = ['ignore', 'keep'];

let [

  chili,

  , // rotten

  , // rancid

  apple,

  olive,

] = ['chili', 'rotten', 'rancid', 'apple', 'olive'];

​

// OR

​

let [

  chili,

  /* rotten */,

  /* rancid */,

  keep,

  olive

] = ['chili', 'rotten', 'rancid', 'keep', 'olive'];